Youth movement: They elected not to re-sign LB Michael Boley, 30, replacing him on the weak side with 25-year-old Jacquian Williams, a third-year veteran.

Best young player: WR Victor Cruz. Despite being the focal point of opposing defenses last season, Cruz still caught 86 passes for 1,092 yards and 10 touchdowns.

Pressure’s on: RB David Wilson. A first-round pick in 2012, Wilson will be the starter this season after the team failed to re-sign Bradshaw. Wilson averaged 5.0 yards per carry as a rookie, but had only 71 rushes. That number will greatly go up this season.

Youth movement: Because of salary cap concerns and the fact they traded their first-round pick to acquire Griffin, the Redskins didn’t have much room to rebuild. They did get younger in the secondary with the drafting of cornerback David Amerson and safety Bacarri Rambo.

Best young player: QB Robert Griffin III, left.

Pressure’s on: RB Alfred Morris. As a rookie, he set a franchise record with 1,613 yards. If RGIII misses time at the beginning of the season, the Redskins will lean on Morris even more heavily.

Youth movement: Instead of bringing back RB Felix Jones, the Cowboys drafted Joseph Randle in the fifth round. Randle should expect to see plenty of work as the backup to DeMarco Murray, who has struggled with injuries.

Best young player: WR Dez Bryant. After a drama-free offseason, Bryant should build on his 92-catch, 1,382-yard season of a year ago. He has matured on and off the field, and is poised to become one of the best wide receivers in the NFL.

Youth movement: The Eagles let disappointing CBs Nnamdi Asomugha and Dominique Rodgers-Cromartie walk in free agency and replaced them with 28-year-old Cary Williams and 27-year-old Bradley Fletcher. Both are considered tough defensive backs willing to tackle.

Best young player: DT Fletcher Cox. The 12th overall pick in 2012 had a quality rookie season with 39 tackles and 5.5 sacks.

Pressure’s on: WR DeSean Jackson. He was on his way to his best season in 2012, before missing the final five games with broken ribs. Jackson will be counted on more after fellow WR Jeremy Maclin was lost to a torn ACL. – J.S.